On 03-Aug-98 at 14:29:22 Philip Hazel wrote:
> On Mon, 3 Aug 1998, John Horne wrote:
>
>> I had something similar in the system filter to:
>>
>> headers remove Reply-to
>> headers remove From
>>
>> headers add "From: ${lookup {${substr_4:${local_part:$h_To:}}} lsearch
>> {replies} {$value}
>> {postmaster@???}}\\n"
>> headers remove To
>> freeze
>
>> However, the file lookup fails. If I remove the 'headers remove To' line
>> then it works. Am I missing something here or isn't the script being
>> executed sequentially?
>
> That seems very strange. Are you sure that was what happened? It worked
> for me with and without the 'headers remove To' line.
>
Sorry, the problem was all mine. To ensure that the message is 'genuine' there
is a check on the message being sent from the postmaster and addressed to a
specific list name (hence the substr_4) around the 'headers' statements. I
thought the check was on the header From: address, but it is on the envelope
from. Hence the code *was* being executed twice in some cases - when the
'headers remove To:' was removed - and once otherwise.
Many thanks to Philip for pointing this out, albeit by making me think about
what was happening!, and for pointing out the 'first_delivery' function is
system filters.
Apologies for the hassle,
John.
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John Horne E-mail: J.Horne@???
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